Motorcycle exhaust system



FIG. 1 is a front elevational view of a motorcycle exhaust systemshowing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a perspective view of the motorcycle exhaust system of FIG. 1as viewed from the front and right side of the system; and,

FIG. 8 is a perspective view of the motorcycle exhaust system of FIG. 1as viewed from the rear and left side of the system.

The ornamental design for a motorcycle exhaust system, as shown and described. 